Kodlak Whitemane

Kodlak Whitemane is the current Harbringer of the Companions. Prospective Companions speak to him in order to be judged worthy enough to join them during the quest Take Up Arms.

It is later revealed in his journal that the player was accepted into the Companions because he/she appeared in a dream where he/she helped Kodlak in fighting the Hircine's wolves.Spoiler - Click to see/hide

By following the Companions questline, players will be able to gain Kodlak's trust and eventually succeed him as the next Harbinger of the Companions.